Pop singer Justin Bieber has become the most followed person on Twitter, accumulating 33,326,624 followers on the social-networking site and passing pop queen Lady Gaga, the Twitter Counter web site said. (AP/Evan Agostini)

The other Twitter phenomenon are Katy Perry, who is in third place with 31,484,156 followers, followed by Rihanna, Barack Obama, Britney Spears, Taylor Swift, YouTube, Shakira and Kim Kardashian.
(AFP/Gabriel Bouys)